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notsponge [240]
4 years ago
7

Which of the following is not a characteristic of non-Euclidean geometry? A. Space is saddle-curved. B. The sum of the angles in

a triangle is always 180degrees. C. The parallel postulate is false. D. There are no straight lines.
Mathematics
1 answer:
Elodia [21]4 years ago
4 0
I think it's B. The sum of angles in a triangle is always 180 degrees. 
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Solve each inequality and graph the solution 2-5y >= -23
castortr0y [4]

Answer:

y<=5

Step-by-step explanation:

2-5y>=-23

subtract 2 from each side

-5y>=-25

divide both sides by -5

y<=5

4 0
3 years ago
13) What is the simple interest and total amount earned on $4345 with an interest rate of
Annette [7]

Answer:

173.80 interest, 4518.80 total

Step-by-step explanation:

4345 X .03(3%)=130.35/year

130.35/12=10.8625/month

10.8625 x 16 months = 173.80 interest over 16 months

4345+173.80=4518.80 total amount

6 0
3 years ago
According to a certain news poll, 71% agreed that it should be the government's responsibility to provide a decent standard of l
finlep [7]

Answer:

0.3157

Step-by-step explanation:

Given that according to a certain news poll, 71% agreed that it should be the government's responsibility to provide a decent standard of living for the elderly,

Let A be the event that it should be the government's responsibility to provide a decent standard of living for the elderly, and B the event that it would be a good idea to invest part of their Social Security taxes on their own

P(B) = 41%=0.41

A and B are independent

Hence P(both)=0.77(0.41) = 0.3157\\

the probability that a person agreed with both propositions

= Probability for both A and B

= P(A) P(B) since A and B are independent

= 0.3157

3 0
3 years ago
A swim team is divided into age groups: Guppies, stingrays, and sharks. There are 20 swimmers in the Stingray group. If we rando
ivanzaharov [21]

If you choose 10 swimmers and 4 are Stingrays, you can say that Stingrays make up roughly 40% of the swimmers. If 20 Stingrays make up 40% of all the swimmers, we just have to find what number 20 is 40% of. That’s easy enough by cross multiplication:

20/x = 40/100

20/x = 4/10

20/x = 2/5

x = 50.

Double check by multiplying 50 * 0.4. Since 50 * 0.4 = 20, we know we have the right answer. There are about 50 swimmers on this team.

5 0
3 years ago
I need help with this pleaseee!
ololo11 [35]
Probably B

STEP BY STEP
7 0
3 years ago
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